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Available structures
PDB Ortholog search: PDBe RCSB
Aliases LRIG1, LIG-1, LIG1, leucine-rich repeats and immunoglobulin like domains 1, leucine rich repeats and immunoglobulin like domains 1
External IDs MGI: 107935 HomoloGene: 7380 GeneCards: LRIG1
Gene location (Human)
Chromosome 3 (human)
Chr. Chromosome 3 (human)[1]
Chromosome 3 (human)
Genomic location for LRIG1
Genomic location for LRIG1
Band 3p14.1 Start 66,378,797 bp[1]
End 66,501,263 bp[1]
RNA expression pattern
PBB GE LRIG1 211596 s at fs.png
More reference expression data
Species Human Mouse
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC) Chr 3: 66.38 – 66.5 Mb Chr 6: 94.6 – 94.7 Mb
PubMed search [3] [4]
View/Edit Human View/Edit Mouse

Leucine-rich repeats and immunoglobulin-like domains protein 1 is a protein that in humans is encoded by the LRIG1 gene.[5][6][7] It encodes a transmembrane protein that has been shown to interact with receptor tyrosine kinases of the EGFR-family[8] , MET[9] and RET.[10]

Model organisms[edit]

Model organisms have been used in the study of LRIG1 function. A conditional knockout mouse line, called Lrig1tm1a(EUCOMM)Wtsi[20][21] was generated as part of the International Knockout Mouse Consortium program — a high-throughput mutagenesis project to generate and distribute animal models of disease to interested scientists.[22][23][24]

Male and female animals underwent a standardized phenotypic screen to determine the effects of deletion.[18][25] Twenty five tests were carried out on homozygous mutant mice and ten significant abnormalities were observed, including decreased body weight and total body fat, scaly skin, abnormal hair shedding, a moderate degree of hearing impairment, vertebral fusion, abnormal plasma chemistry and an increased susceptibility to bacterial infection (with both Salmonella and Citrobacter).[18]


  1. ^ a b c ENSG00000282243 GRCh38: Ensembl release 89: ENSG00000144749, ENSG00000282243 - Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000030029 - Ensembl, May 2017
  3. ^ "Human PubMed Reference:". 
  4. ^ "Mouse PubMed Reference:". 
  5. ^ Nilsson J, Vallbo C, Guo D, Golovleva I, Hallberg B, Henriksson R, Hedman H (Jun 2001). "Cloning, characterization, and expression of human LIG1". Biochem Biophys Res Commun. 284 (5): 1155–61. doi:10.1006/bbrc.2001.5092. PMID 11414704. 
  6. ^ Hedman H, Nilsson J, Guo D, Henriksson R (Sep 2002). "Is LRIG1 a tumour suppressor gene at chromosome 3p14.3?". Acta Oncol. 41 (4): 352–4. doi:10.1080/028418602760169398. PMID 12234026. 
  7. ^ "Entrez Gene: LRIG1 leucine-rich repeats and immunoglobulin-like domains 1". 
  8. ^ Gur G, Rubin C, Katz M, et al. (2005). "LRIG1 restricts growth factor signaling by enhancing receptor ubiquitylation and degradation". EMBO J. 23 (16): 3270–81. doi:10.1038/sj.emboj.7600342. PMC 514515Freely accessible. PMID 15282549. 
  9. ^ Shattuck DL, Miller JK, Laederich M, et al. (2007). "LRIG1 Is a Novel Negative Regulator of the Met Receptor and Opposes Met and Her2 Synergy". Mol. Cell. Biol. 27 (5): 1934–46. doi:10.1128/MCB.00757-06. PMC 1820466Freely accessible. PMID 17178829. 
  10. ^ Ledda F, Bieraugel O, Fard SS, Vilar M, Paratcha G (2008). "Lrig1 is an endogenous inhibitor of Ret receptor tyrosine kinase activation, downstream signaling, and biological responses to GDNF". J. Neurosci. 28 (2): 39–49. doi:10.1523/JNEUROSCI.2196-07.2008. PMID 18171921. 
  11. ^ "Body weight data for Lrig1". Wellcome Trust Sanger Institute. 
  12. ^ "Dysmorphology data for Lrig1". Wellcome Trust Sanger Institute. 
  13. ^ "DEXA data for Lrig1". Wellcome Trust Sanger Institute. 
  14. ^ "Radiography data for Lrig1". Wellcome Trust Sanger Institute. 
  15. ^ "Clinical chemistry data for Lrig1". Wellcome Trust Sanger Institute. 
  16. ^ "Salmonella infection data for Lrig1". Wellcome Trust Sanger Institute. 
  17. ^ "Citrobacter infection data for Lrig1". Wellcome Trust Sanger Institute. 
  18. ^ a b c Gerdin AK (2010). "The Sanger Mouse Genetics Programme: High throughput characterisation of knockout mice". Acta Ophthalmologica. 88: 925–7. doi:10.1111/j.1755-3768.2010.4142.x. 
  19. ^ Mouse Resources Portal, Wellcome Trust Sanger Institute.
  20. ^ "International Knockout Mouse Consortium". 
  21. ^ "Mouse Genome Informatics". 
  22. ^ Skarnes, W. C.; Rosen, B.; West, A. P.; Koutsourakis, M.; Bushell, W.; Iyer, V.; Mujica, A. O.; Thomas, M.; Harrow, J.; Cox, T.; Jackson, D.; Severin, J.; Biggs, P.; Fu, J.; Nefedov, M.; De Jong, P. J.; Stewart, A. F.; Bradley, A. (2011). "A conditional knockout resource for the genome-wide study of mouse gene function". Nature. 474 (7351): 337–342. doi:10.1038/nature10163. PMC 3572410Freely accessible. PMID 21677750. 
  23. ^ Dolgin E (2011). "Mouse library set to be knockout". Nature. 474 (7351): 262–3. doi:10.1038/474262a. PMID 21677718. 
  24. ^ Collins FS, Rossant J, Wurst W (2007). "A Mouse for All Reasons". Cell. 128 (1): 9–13. doi:10.1016/j.cell.2006.12.018. PMID 17218247. 
  25. ^ van der Weyden L, White JK, Adams DJ, Logan DW (2011). "The mouse genetics toolkit: revealing function and mechanism". Genome Biol. 12 (6): 224. doi:10.1186/gb-2011-12-6-224. PMC 3218837Freely accessible. PMID 21722353. 

Further reading[edit]